Tx page: show historical $ value

[isstuev]

Description and Related Issue(s)

resolves #2293

Additional Information

historical exchange rate would be set to null for the latest txs in the 10.0 backend release

Checklist for PR author

• I have tested these changes locally.
• I added tests to cover any new functionality, following this guide
• Whenever I fix a bug, I include a regression test to ensure that the bug does not reappear silently.
• If I have added a feature or functionality that is not privacy-compliant (e.g., tracking, analytics, third-party services), I have disabled it for private mode.
• If I have added, changed, renamed, or removed an environment variable
  • I updated the list of environment variables in the documentation
  • I made the necessary changes to the validator script according to the guide
  • I added "ENVs" label to this pull request

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Note

Medium Risk
Touches shared value rendering used widely across the UI and changes how USD amounts are computed/displayed (including new interactive toggle), so regressions in formatting or tooltip behavior could affect many views.

Overview
Adds historic_exchange_rate to the Transaction API type and updates stubs/mocks and degraded/RPC placeholder tx objects to carry it through.

Updates AssetValue/SimpleValue to optionally compute USD using a historic exchange rate by default, show a tooltip label (historic vs current), and—when enabled—render the USD value as a clickable tag to toggle between historic and current rates. Wires this through NativeCoinValue usages across tx details (value, fees, rollup fees, burnt/blob fees) and tx lists via a new hasExchangeRateToggle prop (including TxFee). Adds Playwright screenshot tests covering the new exchange-rate toggle and tooltip behavior.

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